Management Detail

Tomato Ringspot Virus (TRsV)

Identification/Symptoms:
Vary from mottled, chlorotic, mosaic leaves to leaf curling and ringspotting. Infected plants often show no symptoms but have low vigor and yield. The virus may cause crumbly fruit. On some cultivars it causes a severe dwarfing that resembles root rot damage. The red raspberry cultivar 'Fairview' is very susceptible; affected plants die quickly. 'Canby' and 'Puyallup' are also susceptible to (ToRSV) and are severely weakened when affected. 'Willamette' is somewhat tolerant.

Cause:
Tomato ringspot virus (ToRSV) which is spread at a rate of about 6 ft a year in the row by dagger nematodes (Xiphinema americanum) and possibly related species. It is the most common virus in red raspberry in Oregon. Many weeds are host to both the virus and nematode.
[OSU- Online Pest Guide]